Efficient Change Recognition Algorithm

1. A first wireless device configured for data recognition, the first wireless device comprising: a processor that is configured to: generate a first hash value based on a first incoming data stream received by the first wireless device from a second wireless device; generate a second hash value based on a second incoming data stream received by the first wireless device from the second wireless device; and detect a change in recognition data used to at least one of identify, select, or recognize the second wireless device based on a comparison of the first hash value with the second hash value; and a storage memory in communication with the processor and configured to store the first hash value.

2. The first wireless device of claim 1 wherein the processor is further configured to identify an identification parameter (ID) of the second incoming data stream and retrieve one of a plurality of sets of mask values based on the ID.

3. The first wireless device of claim 2 wherein the processor is further configured to generate a recognition data stream when the processor masks the second incoming data stream with the one of the plurality of sets of mask values.

4. The first wireless device of claim 3 wherein the processor is configured to generate the second hash value based on the recognition data stream and retrieve the first hash value from the memory based on the ID.

5. The first wireless device of claim 1 wherein the processor is further configured to discard the second incoming data stream when the first hash value and the second hash value are equal.

6. The first wireless device of claim 1 wherein the processor is further configured to set the first hash value to the second hash value when the first hash value does not equal the second hash value, and retain the second incoming data stream for further processing by the wireless device.

7. The first wireless device of claim 1 , wherein the processor is further configured to: determine whether to switch the first wireless device from association with the second wireless device to association with a third wireless device, the determination being based on the detected change in the recognition data associated with the second wireless device.

8. A first wireless device configured for data recognition, the first wireless device comprising: means for generating a first hash value based on a first incoming data stream received by first the wireless device from a second wireless device; means for generating a second hash value based on a second incoming data stream received by the first wireless device from the second wireless device; and means for detecting a change in recognition data used to at least one of identify, select, or recognize the second wireless device based on a comparison of the first hash value with the second hash value; and means for storing the first hash value.

9. A method for processing recognition data for a first wireless device, the method comprising: generating a first hash value based on a first incoming data stream received by the first wireless device from a second wireless device; storing the first hash value; generating a second hash value based on a second incoming data stream received by the first wireless device from the second wireless device; and comparing the first hash value with the second hash value to determine a change in recognition data used to at least one of identify, select, or recognize the second wireless device.

10. The method of claim 9 further comprising identifying an identification parameter (ID) of the second incoming data stream and retrieving one of a plurality of sets of mask values based on the ID.

11. The method of claim 10 further comprising generating a recognition data stream based on masking the second incoming data stream with the one of the plurality of sets of mask values.

12. The method of claim 11 further comprising generating the second hash value based on the recognition data stream and retrieving the first hash value from the memory based on the ID.

13. The method of claim 9 further comprising discarding the second incoming data stream when the first hash value and the second hash value are equal.

14. The method of claim 9 further comprising setting the first hash value to the second hash value when the first hash value does not equal the second hash value and retaining the second incoming data stream for further processing by the wireless device.

15. A non-transitory computer-readable storage medium storing a computer program comprising instructions for causing a processor to: generate a first hash value based on a first incoming data received from a wireless device; store the first hash value; and generate a second hash value based on a second incoming data stream received from the wireless device; and detect a change in recognition data used to at least one of identify, select, or recognize the wireless device based on a comparison between the first hash value with the second hash value.

16. The non-transitory computer-readable storage medium of claim 15 wherein the computer program further comprises instructions for causing the processor to identify an identification parameter (ID) of the second incoming data stream and retrieving one of a plurality of sets of mask values based on the ID.

17. The non-transitory computer-readable storage medium of claim 16 wherein the computer program further comprises instructions for causing the processor to generate a recognition data stream based on masking the second incoming data stream with the one of the plurality of sets of mask values.

18. The non-transitory computer-readable storage medium of claim 17 wherein the computer program further comprises instructions for causing the processor to generate the second hash value based on the recognition data stream and retrieving the first hash value from the memory based on the ID.

19. The non-transitory computer-readable storage medium of claim 15 wherein the computer program further comprises instructions for causing the processor to discard the second incoming data stream when the first hash value and the second hash value are equal.

20. The non-transitory computer-readable storage medium of claim 15 wherein the computer program further comprises instructions for causing the processor to set the first hash value to the second hash value when the first hash value does not equal the second hash value and retaining the second incoming data stream for further processing by the wireless device.